20348848

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{271}}^1$

素因数の和:330

約数の個数: 60

約数和(自身を含む): 44976288

約数和(自身を除く): 24627440

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 271, 304, 361, 494, 542, 722, 988, 1084, 1444, 1976, 2168, 2888, 3523, 3952, 4336, 4693, 5149, 5776, 7046, 9386, 10298, 14092, 18772, 20596, 28184, 37544, 41192, 56368, 66937, 75088, 82384, 97831, 133874, 195662, 267748, 391324, 535496, 782648, 1070992, 1271803, 1565296, 2543606, 5087212, 10174424, 20348848]

約数ペア:

[(1, 20348848), (2, 10174424), (4, 5087212), (8, 2543606), (13, 1565296), (16, 1271803), (19, 1070992), (26, 782648), (38, 535496), (52, 391324), (76, 267748), (104, 195662), (152, 133874), (208, 97831), (247, 82384), (271, 75088), (304, 66937), (361, 56368), (494, 41192), (542, 37544), (722, 28184), (988, 20596), (1084, 18772), (1444, 14092), (1976, 10298), (2168, 9386), (2888, 7046), (3523, 5776), (3952, 5149), (4336, 4693)]